BLD Converter

Convert BLD files online for free


Drop or upload your .BLD file
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How to convert your BLD file

  1. Click the "Select File" button above, and choose your BLD file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert BLD to another file type

The converter easily converts your BLD file to various formats - free and online. No Blender or extra software needed.

  • BLD to OBJ
  • BLD to FBX
  • BLD to DAE
  • BLD to 3DS
  • BLD to MAX
  • BLD to BLEND
  • BLD to MA
  • BLD to MB
  • BLD to C4D
  • BLD to STL
  • BLD to PLY
  • BLD to WRL

Convert a file to BLD

The converter also works in reverse, so you can convert other Cad formats to BLD with high quality output.

  • DWG to BLD
  • DAE to BLD
  • X3D to BLD
  • IGES to BLD
  • WRL to BLD
  • JT to BLD
  • SKP to BLD
  • 3DS to BLD
  • 3DM to BLD
  • OBJ to BLD
  • STEP to BLD
  • FBX to BLD

About BLD files

A .BLD file is most frequently a 3D Building Project created by home design software based on the Cadsoft Envisioneer engine, such as 3D Architect or Home Designer. These files contain comprehensive Building Information Modeling (BIM) data, including 3D geometry, textures, lighting settings, and floor plan layouts.

A common frustration with .BLD files is their proprietary nature; they are strictly tied to the specific version of the software that created them. Users often struggle to open legacy project files without an active license or subscription to the original design suite. Furthermore, sharing these designs with clients or contractors who use industry-standard tools like AutoCAD or SketchUp is impossible without conversion.

For professional collaboration, the best approach is converting .BLD files to DWG or DXF for 2D drafting compatibility, or IFC for BIM interoperability. If the goal is visual presentation or archiving, converting the project to PDF (for blueprints) or standard image formats like JPG is recommended.

Note: This extension is also used by Skyscraper Simulator for building definitions, Skylanders for game data, and Microsoft BitLocker for repair logs. It is crucial to verify the file source before attempting conversion.

Use Convert.Guru to open and convert your BLD file.

Users also converted BKP, BDL, WEBP, BLEND, GLB, FMT, PDF, AAE, PL1 and PL2 files.



The BLD Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our BLD converter.